CN102608719B - Method for manufacturing filling material for optical cable - Google Patents
Method for manufacturing filling material for optical cable Download PDFInfo
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- CN102608719B CN102608719B CN 201210085064 CN201210085064A CN102608719B CN 102608719 B CN102608719 B CN 102608719B CN 201210085064 CN201210085064 CN 201210085064 CN 201210085064 A CN201210085064 A CN 201210085064A CN 102608719 B CN102608719 B CN 102608719B
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- filling material
- cable
- millimeter
- optical cable
- manufacture method
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 title abstract description 18
- -1 polypropylene Polymers 0.000 claims abstract description 21
- 239000004743 Polypropylene Substances 0.000 claims abstract description 17
- 229920001155 polypropylene Polymers 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 13
- 239000007822 coupling agent Substances 0.000 claims abstract description 10
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 15
- 239000007858 starting material Substances 0.000 claims description 12
- 239000003017 thermal stabilizer Substances 0.000 claims description 10
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 claims description 4
- 102000004895 Lipoproteins Human genes 0.000 claims description 3
- 108090001030 Lipoproteins Proteins 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 230000031709 bromination Effects 0.000 claims description 3
- 238000005893 bromination reaction Methods 0.000 claims description 3
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 3
- 150000001455 metallic ions Chemical class 0.000 claims description 3
- 238000002161 passivation Methods 0.000 claims description 3
- 235000013824 polyphenols Nutrition 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 239000000052 vinegar Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229920000092 linear low density polyethylene Polymers 0.000 abstract description 10
- 239000004707 linear low-density polyethylene Substances 0.000 abstract description 10
- 239000011347 resin Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract 3
- 238000005520 cutting process Methods 0.000 abstract 1
- 230000002950 deficient Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 16
- 239000006057 Non-nutritive feed additive Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical group CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to an optical cable material, in particular to a method for manufacturing a filling material for an optical cable. The optical cable material is characterized in that the optical cable material is prepared by the following steps: (1) weighing the following raw materials in percentage by weight: 10 to 60 percent of linear low-density polyethylene resin, 30 to 85 percent of polypropylene resin, 0.2 to 0.9 percent of antioxidant, 0.2 to 0.9 percent of processing agent, 0.6 to 3.5 percent of lubricating agent and 0.5 to 4.0 percent of coupling agent; (2) uniformly mixing the raw materials; (3) extruding and stretching the materials; (4) cutting the extruded materials; (5) drying the materials by using a dryer; and (6) quantitatively packaging to form the filling material for the optical cable. The optical cable material provided by the invention has the following advantages: the production method is simple, the yield of the product is high, the products and the defective products formed in the production process can be recycled, resources are not wasted, the environment is not influenced, and the raw material resources are rich; and moreover, by the optical cable material, the space can be saved, the transport cost is saved, and the packaging cost is saved.
Description
Technical field
The present invention relates to cable material, especially a kind of manufacture method of cable-filling material.
Background technology
In existing optical cable technology field, layer-stranding cable comprises at least: some rhizospheres around the stranded protection tube of central reinforce member, be positioned at the light transmitting fiber of protection tube and be positioned at protective seam outside the stranded protection tube; When not needing many protection tubes in the optical cable, for the stable saving that reaches cost of structure, usually adopt gasket for packing to replace the part protection tube, thus stranded around central reinforce member with essential protection tube; In present such optical cable, the material of the gasket for packing of employing is polypropylene (PP) or modified polypropene or linear low density polyethylene (LLDPE); Because polypropylene or modified polypropene structure be pine relatively, and its toughness is little, therefore, be that 3.0 millimeters and following gasket for packing adopt polypropylene or modified polypropene to make for diameter, or proper; And be in the middle of gasket for packing more than 3.0 millimeters adopts polypropylene or modified polypropene to make almost invariably to produce gasket for packing a plurality of holes to be arranged for diameter, not only reduced the intensity of gasket for packing itself and optical cable, and, thereby make the permeability performance of optical cable can't ensure the life-span that affects optical cable.And linear low density polyethylene has toughness height, characteristics that breaking elongation is large, therefore in also can be used for making gasket for packing, but it is because the later stage contraction is larger, therefore, when to make diameter be gasket for packing more than 3.0 millimeters, if produce finish after untimely being used, can produce serious contraction, can make the local deformation of gasket for packing own, even also can damage the dish tool for the coiling gasket for packing; And, because the price of linear low density polyethylene is more than the price of polypropylene or modified polypropene, therefore, for the producer that produces the layer-twisted type fibre ribbon, because therefore the diameter of the loose sleeve pipe of stranded optical fiber band, need to bear very large cost pressure generally all greater than 3.0 millimeters.In addition, because in the layer-stranding cable, the protective seam outside the stranded gasket for packing of protection tube is generally composite steel band or compound aluminium strip or restrictive coating, the coating on the surface of composite steel band or compound aluminium strip is generally the polyalkenes film; The base material of restrictive coating is generally vinyl; commonly used is Low Density Polyethylene or medium density polyethylene or high density polyethylene or halogen-free polyvinyl or low halogen tygon; therefore; in the sheath production run of optical cable; the gasket for packing that the heat of sheath extrusion molding usually can use linear low density polyethylene to make merges mutually with protective seam, and then affects the stripping performance of optical cable.
Summary of the invention
Purpose of the present invention will overcome above-mentioned shortcoming exactly, and a kind of cost is low, amount of contraction is moderate, suppleness is appropriate and the cable-filling material of production major diameter cable-filling material rope and the manufacture method of this kind material but provide; It is realized by the following technical solutions:
A kind of cable-filling material is characterized in that: by weight percentage, it comprises following component and content at least:
Be further characterized in that: described filling material density is 0.960-1.065g/cm
3Melt index (MI) is 0.06-0.96g/10min; Tensile strength is not less than 10Mpa; Breaking elongation is not less than 100%; Percent thermal shrinkage is not more than 3.5%.
Further, in the cable-filling material described above, by weight percentage, also can comprise: thermal stabilizer: 0.04-2.0%.
Antioxidant described above is alkyl Polyphenols, sulfo-vinegar class and the metallic ion passivation agent that contains phthalein fat group.
Processing aid described above is selected from fluoroelastomer, low molecular weight polyethylene, Tissuemat E, mineral oil and contains N, the auxiliary agent of the two acetamide functional groups of N one ethylene.
Coupling agent described above is silane, one or more the potpourri in admire sour fat, aluminic acid lipoprotein, phosphite, the rare earth compound.
Lubricant described above is one or more the potpourri in Tissuemat E, polypropylene wax, the phthalein amine wax; Described antioxidant is one or more the potpourri in hindered phenol, phosphite, the sulfo-fat.
Thermal stabilizer described above is haloflex or bromination tygon or both potpourris.
A kind of manufacture method of cable-filling material is characterized in that making as follows:
1. weigh by weight percentage and obtain the starting material of following proportioning:
2. with step 1. described starting material mix;
3. carrying out extrusion molding with extruding machine stretches;
4. extrudate is cut, obtaining diameter is that 2.1-3.9 millimeter, length are the particle of the cylindrical or near cylindrical of 2-5 millimeter; Or major cross-sectional axis length is that 2.0-4.0 millimeter, cross section minor axis length are that 1.5-3.0 millimeter, length are the elliptical cylinder-shape particle of 2-5 millimeter; Or cross-sectional length is that 2.1-3.9 millimeter, cross-sectional width are that 1.5-3.9 millimeter, length are the rectangular parallelepiped cylindrical particle of 2-5 millimeter;
5. the particle that obtains in 4. with the dry above-mentioned steps of dryer to water percentage less than 2/1000ths or less than 2/1000ths and greater than per mille or less than per mille;
6. quantitative package is weighed into 50 ± 1Kg or 1000 ± 10Kg with above-mentioned gained dried particles, inserts in the inner bag of airtight and good seal opening, and the outer packaging bag and sealed outer packaging bag of again this inner bag being packed into namely gets described cable-filling material; Described filling material density is 0.960-1.065g/cm
3Melt index (MI) is 0.06-0.96g/10min; Tensile strength is not less than 10Mpa; Breaking elongation is not less than 100%; Percent thermal shrinkage is not more than 3.5%.
Owing to adopted the mode with polypropylene and linear low density polyethylene hybrid process among the present invention, and the materials such as antioxidant, processing aid, lubricant, coupling agent thermal stabilizer have been added, therefore, it has the following advantages: the gasket for packing surface that cost is lower, amount of contraction is better, suppleness is suitable, extrude is Paint Gloss, inner structure is tightr, uses the optical cable cost of this gasket for packing cheaper.
Embodiment
Following examples are used for being described in further detail the present invention, but the present invention is not limited to following embodiment, and under the aim that does not break away from authority of the present invention, change is included in the technical scope of the present invention.
Embodiment one
Cable-filling material of the present invention, by weight percentage, it includes following component and content: linear low density polyethylene resin: 30%; Acrylic resin: 65%; Antioxidant: 0.5%; Processing aid: 0.3%; Lubricant: 1.2%; Coupling agent: 2.0%; Other composition: 2%; Described filling material density is 1.02g/cm
3Melt index (MI) is 0.56g/10min; Tensile strength is 15Mpa; Breaking elongation is 200%; Percent thermal shrinkage is 3.5%.
Embodiment two
Cable-filling material of the present invention, by weight percentage, it includes following component and content: linear low density polyethylene resin: 10%; Acrylic resin: 85%; Antioxidant: 0.3%; Processing aid: 0.9%; Lubricant: 0.6%; Coupling agent: 3.0%; Other composition: 0.2%; Described filling material density is 1.062g/cm
3Melt index (MI) is 0.08g/10min; Tensile strength is 21Mpa; Breaking elongation is 120%; Percent thermal shrinkage is 1.5%.
Embodiment three
Cable-filling material of the present invention, by weight percentage, it includes following component and content: linear low density polyethylene resin: 60%; Acrylic resin: 30%; Antioxidant: 0.8%; Processing aid: 0.6%; Lubricant: 2.5%; Coupling agent: 1.1%; Other composition: 5.0%; Described filling material density is 0.982g/cm
3Melt index (MI) is 0.42g/10min; Tensile strength is 16Mpa; Breaking elongation is 320%; Percent thermal shrinkage is 3.5%.
Embodiment four
Cable-filling material of the present invention, by weight percentage, it includes following component and content: linear low density polyethylene resin: 60%; Acrylic resin: 30%; Antioxidant: 0.8%; Processing aid: 0.6%; Lubricant: 2.5%; Coupling agent: 1.1%; Other composition: 4.0%; Thermal stabilizer: 1.0%; Described filling material density is 0.995g/cm
3Melt index (MI) is 0.68g/10min; Tensile strength is 15Mpa; Breaking elongation is 300%; Percent thermal shrinkage is 3.2%; Thermal stabilizer is haloflex.
Certainly, above-mentioned embodiment one can also add the 0.04-2.0% thermal stabilizer in embodiment three, substitutes the part in other material.
In above-mentioned arbitrary embodiment, described antioxidant is alkyl Polyphenols, sulfo-vinegar class and the metallic ion passivation agent that contains phthalein fat group.
In above-mentioned arbitrary embodiment, described processing aid is selected from fluoroelastomer, low molecular weight polyethylene, Tissuemat E, mineral oil and contains N, the auxiliary agent of the two acetamide functional groups of N one ethylene.
In above-mentioned arbitrary embodiment, described coupling agent is silane, one or more the potpourri in admire sour fat, aluminic acid lipoprotein, phosphite, the rare earth compound.
In above-mentioned arbitrary embodiment, described lubricant is one or more the potpourri in Tissuemat E, polypropylene wax, the phthalein amine wax; Described antioxidant is one or more the potpourri in hindered phenol, phosphite, the sulfo-fat.
In above-mentioned arbitrary embodiment, described thermal stabilizer is haloflex or bromination tygon or both potpourris.
In above-mentioned arbitrary embodiment, by weight percentage, its component and content also can be as described below:
And be further characterized in that: described filling material density is 0.960-1.065g/cm
3Melt index (MI) is 0.06-0.96g/10min; Tensile strength is not less than 10Mpa; Breaking elongation is not less than 100%; Percent thermal shrinkage is not more than 3.5%.
Certainly, cable-filling material described above can also be used for any occasion that the extruding of skeleton of slotted core cable, the extrusion molding of layer-stranding cable reinforcement etc. can contemplate.
Owing to adopted the mode with polypropylene and linear low density polyethylene hybrid process among the present invention, and the materials such as antioxidant, processing aid, lubricant, coupling agent thermal stabilizer have been added, therefore, it has the following advantages: the gasket for packing surface that cost is lower, amount of contraction is better, suppleness is suitable, extrude is Paint Gloss, inner structure is tightr, uses the optical cable cost of this gasket for packing cheaper.
A kind of manufacture method of cable-filling material is characterized in that making as follows:
1. weigh by weight percentage and obtain the starting material of following proportioning:
2. with step 1. described starting material mix;
3. carrying out extrusion molding with extruding machine stretches;
4. extrudate is cut, obtaining diameter is that 2.1-3.9 millimeter, length are the particle of the cylindrical or near cylindrical of 2-5 millimeter, or major cross-sectional axis length is that 2.0-4.0 millimeter, cross section minor axis length are that 1.5-3.0 millimeter, length are the elliptical cylinder-shape particle of 2-5 millimeter, or cross-sectional length is that 2.1-3.9 millimeter, cross-sectional width are that 1.5-3.9 millimeter, length are the rectangular parallelepiped cylindrical particle of 2-5 millimeter;
5. the particle that obtains in 4. with the dry above-mentioned steps of dryer to water percentage less than 2/1000ths or less than 2/1000ths and greater than per mille or less than per mille;
6. quantitative package is weighed into 50 ± 1Kg or 1000 ± 10Kg with above-mentioned gained dried particles, inserts in the inner bag of airtight and good seal opening, and the outer packaging bag and sealed outer packaging bag of again this inner bag being packed into namely gets described cable-filling material; Described filling material density is 0.960-1.065g/cm
3Melt index (MI) is 0.06-0.96g/10min; Tensile strength is not less than 10Mpa; Breaking elongation is not less than 100%; Percent thermal shrinkage is not more than 3.5%.
Claims (7)
1. the manufacture method of a cable-filling material is characterized in that making as follows:
1. weigh by weight percentage and obtain the starting material of following proportioning:
2. with step 1. described starting material mix;
3. carrying out extrusion molding with extruding machine stretches;
4. extrudate is cut, obtaining diameter is that 2.1-3.9 millimeter, length are the particle of the cylindrical or near cylindrical of 2-5 millimeter; Or major cross-sectional axis length is that 2.0-4.0 millimeter, cross section minor axis length are that 1.5-3.0 millimeter, length are the elliptical cylinder-shape particle of 2-5 millimeter; Or cross-sectional length is that 2.1-3.9 millimeter, cross-sectional width are that 1.5-3.9 millimeter, length are the rectangular parallelepiped cylindrical particle of 2-5 millimeter;
5. the particle that obtains in 4. with the dry above-mentioned steps of dryer to water percentage less than 2/1000ths;
6. quantitative package is weighed into 50 ± 1Kg or 1000 ± 10Kg with above-mentioned gained dried particles, inserts in the inner bag of airtight and good seal opening, and the outer packaging bag and sealed outer packaging bag of again this inner bag being packed into namely gets described cable-filling material; Described filling material density is 0.960-1.065g/cm
3Melt index (MI) is 0.06-0.96g/10min; Tensile strength is not less than 10Mpa; Breaking elongation is not less than 100%; Percent thermal shrinkage is not more than 3.5%.
2. the manufacture method of cable-filling material according to claim 1 is characterized in that by weight percentage, also comprising: thermal stabilizer: 0.04-2.0% in the starting material described in step 1..
3. the manufacture method of any one cable-filling material described in according to claim 1 and 2 is characterized in that in the starting material described in step 1. that described antioxidant is alkyl Polyphenols or sulfo-vinegar class or the metallic ion passivation agent that contains phthalein fat group.
4. the manufacture method of any one cable-filling material described in according to claim 1 and 2 is characterized in that in the starting material described in step 1., and described coupling agent is silane, a kind of in admire sour fat, aluminic acid lipoprotein, phosphite, the rare earth compound.
5. the manufacture method of any one cable-filling material described in according to claim 1 and 2 is characterized in that in the starting material described in step 1., and described lubricant is a kind of in Tissuemat E, polypropylene wax, the phthalein amine wax.
6. the manufacture method of any one cable-filling material described in according to claim 1 and 2 is characterized in that in the starting material described in step 1., and described antioxidant is a kind of in hindered phenol, phosphite, the sulfo-fat.
7. the manufacture method of cable-filling material according to claim 2 is characterized in that in the described starting material, and described thermal stabilizer is haloflex or bromination tygon or both potpourris.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210085064 CN102608719B (en) | 2009-05-21 | 2009-05-21 | Method for manufacturing filling material for optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210085064 CN102608719B (en) | 2009-05-21 | 2009-05-21 | Method for manufacturing filling material for optical cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910138299A Division CN101655589B (en) | 2009-05-21 | 2009-05-21 | Cable-filling material and manufacture method thereof |
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| Publication Number | Publication Date |
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| CN102608719A CN102608719A (en) | 2012-07-25 |
| CN102608719B true CN102608719B (en) | 2013-05-29 |
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| CN 201210085064 Expired - Fee Related CN102608719B (en) | 2009-05-21 | 2009-05-21 | Method for manufacturing filling material for optical cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103554627A (en) * | 2013-11-18 | 2014-02-05 | 山东科虹线缆科技股份有限公司 | Polyolefin thermoplastic cable insulation material capable of being recycled as well as preparation method thereof |
| CN110982160A (en) * | 2019-11-13 | 2020-04-10 | 苏州亨利通信材料有限公司 | Preparation method of weather-resistant photoelectric PE sheath material |
| CN110982161A (en) * | 2019-11-13 | 2020-04-10 | 苏州亨利通信材料有限公司 | Special PE sheath material for photoelectricity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2547720A1 (en) * | 2003-12-03 | 2005-06-16 | Prysmian Cavi E Sistemi Energia S.R.L. | Impact resistant cable |
| CN101061407A (en) * | 2004-09-27 | 2007-10-24 | 普雷斯曼电缆及系统能源有限公司 | Anti-water optical cable and making method |
| CN101061408A (en) * | 2004-09-27 | 2007-10-24 | 普雷斯曼电缆及系统能源有限公司 | Optical cable for communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2324605T3 (en) * | 2003-09-30 | 2009-08-11 | Prysmian S.P.A. | CABLE WITH COATING LAYER MADE FROM A WASTE MATERIAL. |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2547720A1 (en) * | 2003-12-03 | 2005-06-16 | Prysmian Cavi E Sistemi Energia S.R.L. | Impact resistant cable |
| CN101061407A (en) * | 2004-09-27 | 2007-10-24 | 普雷斯曼电缆及系统能源有限公司 | Anti-water optical cable and making method |
| CN101061408A (en) * | 2004-09-27 | 2007-10-24 | 普雷斯曼电缆及系统能源有限公司 | Optical cable for communication |
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| CN102608719A (en) | 2012-07-25 |
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